Similarly, this observation was confirmed in 43 Korean patients with POAG, NVG, or SOAG, and 20 controls [41], as well as in NVG subjects of Chinese origin, where TGF-β2 and transforming growth factor-beta 1 (TGF-β1), quantified by ELISA, were observed to be upregulated (see Table 1) [42], supporting the hypothesis of the intraocular derivation of this cytokine. Here, TGFB1 is linked to open-angle glaucoma.